BMW’s 3.0 liter six-cylinder turbo diesel is once again praised by automotive magazines. Last one in line to acclaim the N57 diesel is Motor Trend. Here is an excerpt from their review:
“This engine is the third, and most powerful, version of BMW’s N57 common rail, direct injection, twin-turbo oil-burner, developing its 299 hp at 4400rpm, and a hefty 442 lb-ft of torque from just 1750 rpm. A low inertia small turbocharger delivers near instant grunt off idle, while a larger second turbocharger ensures volumetric efficiency at higher engine speeds.
Compared with the N55, the N57 delivers pure, seamless thrust right from standstill – even when you’re easy on the gas pedal – the ZF swiftly shuffling through its eight ratios. It’s perfect for the cut-and-thrust of London, where you’re constantly hustling for the smallest advantage in the traffic. The gobs of instant grunt mean rolling response on the freeway is impressive, too – just wiggle your big toe, and the 535d jumps to attention, allowing you to plug that gap in the fast moving stream of Benzes, Jags, and Range Rovers heading for the Home Counties on a Friday afternoon.
The N57 growls like a contented lion when you tickle the throttle, and there’s a slightly granular quality to the feedback from the engine room, but otherwise you lose nothing compared with the N55-powered 535i. At about 5.6 seconds the 535d’s claimed 0-60 mph time is virtually identical. More impressively, you’ll spend less at the pump, as BMW claims the 535d will return 36.3 mpg on the combined Euro cycle. We saw a best of 36.7 mpg for a 100-mile motorway run, and a worst of 23.5 mpg after 67 miles of stop-start running around the greater London area. Total consumption for our 1032 miles in the car was 30.2 mpg (all figures U.S. gallons). When a 13.8-gallon fill costs just over $120, such math is more than merely academic.”